65859289 has 4 divisors (see below), whose sum is σ = 66253824. Its totient is φ = 65464756.

The previous prime is 65859271. The next prime is 65859293. The reversal of 65859289 is 98295856.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65859289 - 2¹⁵ = 65826521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65859589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197017 + ... + 197350.

It is an arithmetic number, because the mean of its divisors is an integer number (16563456).

Almost surely, 2^65859289 is an apocalyptic number.

It is an amenable number.

65859289 is a deficient number, since it is larger than the sum of its proper divisors (394535).

65859289 is a wasteful number, since it uses less digits than its factorization.

65859289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394534.

The product of its digits is 1555200, while the sum is 52.

The square root of 65859289 is about 8115.3736204811. The cubic root of 65859289 is about 403.8366023049.

The spelling of 65859289 in words is "sixty-five million, eight hundred fifty-nine thousand, two hundred eighty-nine".